WO2005004610A2 - Stiffened flexible baking tin - Google Patents

Stiffened flexible baking tin Download PDF

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Publication number
WO2005004610A2
WO2005004610A2 PCT/FR2004/001745 FR2004001745W WO2005004610A2 WO 2005004610 A2 WO2005004610 A2 WO 2005004610A2 FR 2004001745 W FR2004001745 W FR 2004001745W WO 2005004610 A2 WO2005004610 A2 WO 2005004610A2
Authority
WO
WIPO (PCT)
Prior art keywords
hollow part
mold according
side wall
ring
mold
Prior art date
Application number
PCT/FR2004/001745
Other languages
French (fr)
Other versions
WO2005004610A3 (en
Inventor
Nathalie Bergeret
Original Assignee
Seb Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seb Sa filed Critical Seb Sa
Priority to EP04767581A priority Critical patent/EP1641344B1/en
Priority to CA2530862A priority patent/CA2530862C/en
Priority to US10/581,616 priority patent/US8047500B2/en
Priority to AT04767581T priority patent/ATE494783T1/en
Priority to DE602004031013T priority patent/DE602004031013D1/en
Priority to JP2006518283A priority patent/JP2007515930A/en
Priority to PL04767581T priority patent/PL1641344T3/en
Priority to DK04767581.4T priority patent/DK1641344T3/en
Publication of WO2005004610A2 publication Critical patent/WO2005004610A2/en
Publication of WO2005004610A3 publication Critical patent/WO2005004610A3/en

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Classifications

    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
    • A21B3/00—Parts or accessories of ovens
    • A21B3/13—Baking-tins; Baking forms
    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
    • A21B3/00—Parts or accessories of ovens
    • A21B3/13—Baking-tins; Baking forms
    • A21B3/138—Baking-tins; Baking forms flexible forms, e.g. made from silicone
    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
    • A21B3/00—Parts or accessories of ovens
    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
    • A21B3/00—Parts or accessories of ovens
    • A21B3/13—Baking-tins; Baking forms
    • A21B3/136—Baking-tins; Baking forms with reinforcements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/80—Apparatus for specific applications
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S249/00—Static molds
    • Y10S249/01—Cake pan

Definitions

  • the present invention relates to a mold used to make culinary preparations of the cakes, bakery ... type.
  • Metal molds are known that have a very high rigidity, which does not facilitate the demolding of the preparation.
  • Silicone molds are also known which have the advantage of being oven, microwave, refrigerator, freezer and dishwasher free from tampering but lacking rigidity.
  • FR 2 827 494 discloses a silicone elastomer mold for a cooking preparation to bake or to heat in the oven.
  • the demolding is carried out as follows: mold in place (opening upwards), the bottom of the mold is placed on a support. In the direction of the support, a downward pressure is then exerted on the armature so as to bend the side wall and bring the upper opening substantially to the level of the bottom.
  • this solution is however not perfectly satisfactory especially for the demolding of all preparations, since the curved side wall leaves a bead protruding upward periphery of the bottom, constituting an obstacle to the exit for example of a soft cake or the good introduction of a pie shovel.
  • the mold is also not very stable (bottom flange / deformable release mold).
  • the problem posed here is therefore to make a new mold for culinary preparation allowing very easy demolding of the solid preparation and, potentially, promoting the holding deformation of the mold especially if it contains a liquid or heavy preparation, whether it be cooked or cooked.
  • the proposed solution is a mold for culinary preparation of the type above characterized in that it comprises a rigid frame located in the lower part of the hollow part (towards its bottom) and connected to it. It retains its flexibility to the entire mold, improving some molds and the stability of the shape and / or holding the bottom. But some preparations may continue to pose a problem of weight, or even demolding.
  • this rigid reinforcement "lower” is (at least) a plate located at the bottom of the mold. It is also recommended that the side wall of the hollow part defines, in the lower part, the perimeter of a bottom surface of which only a part will be occupied by the bottom wall made of elastomeric material, this wall then presenting itself as a ring of material peripherally connected to the side wall, thus with a central opening. Access to the bottom plate or inside the mold is then allowed. If this bottom plate extends, at the outer periphery, substantially to the junction between the bottom and the side wall, it will be reinforced (as indeed in a previous solution with a bottom ring) the hinge effect between the bottom and the side wall during demolding.
  • said plate extends to the center of the bottom, thus occupying the essential at least the surface of the bottom, it will promote the mechanical strength of the bottom, preventing the effects of "bellies" under the weight and providing increased form stability at the bottom, in all circumstances.
  • An aspect of the invention also relates to the connection between the hollow part and the bottom frame, when the latter is a plate.
  • the preferred solution for combining demolding quality, mold cost and ease of manufacture is that: - the rigid bottom plate is solid, removable from the hollow part and is only placed on said ring of material of bottom of this hollow part, and / or internally, in the lower part of its side wall, the hollow part has at least one protruding lip extending above said ring of bottom material and the bottom rigid plate is solid and retained by wedging between the bottom material ring and the protruding lip, or - the plate is molded to the hollow part by its periphery where it is trapped in a peripheral groove of the hollow part defining an inner rim.
  • the bottom material ring of the hollow part has differences in thickness
  • / or this bottom material ring has a substantially flat face and an inside face with an annular shoulder, so as to be thicker in periphery that in the central part
  • the rigid bottom plate, disposed in the hollow part substantially follows the surface defined by said inner face of the bottom material ring, so that this rigid bottom plate has two opposite faces curvilinear between the center and the periphery. Thanks to all or some of the above characteristics, two demolding techniques are particularly recommended.
  • FIG. 1 shows a perspective view three-quarter from below of a mold according to the invention
  • - Figure 2 shows a sectional view along the line II-II of Figure 1
  • - Figure 3 shows the detail III of Figure 2
  • FIG. 4 represents, seen from above, a rigid reinforcement used in a mold according to the present invention
  • - Figure 5 shows a sectional view along the axis VV of the armature of Figure 4
  • FIGS. 6 to 13 each represent a local section of a possible adapted embodiment of the mold, according to the same section as FIG. 2.
  • FIGS. 6 to 13 each represent a local section of a possible adapted embodiment of the mold, according to the same section as FIG. 2.
  • the culinary preparation mold 1 is a hollow part la in a flexible material (easily deformable), elastomer (so elastic characteristics), for example silicone.
  • This hollow part forms the container inside which the culinary preparation can be arranged. It comprises a bottom wall 2, a side wall 3 which is raised from the bottom and preferably an upper ring 4 defining an outer stiffening and gripping flange which extends radially from the upper part of the side wall 3, around the opening 5 (the piece is supposed here of circular section).
  • the mold 1 can have different shapes: round, rectangular, elliptical ...
  • the thickness of the crown 4 is generally between 0.5% and 1.5% of this diameter, preferably 1%.
  • the thickness of the ring 4 is of the same order of magnitude as the bottom and side walls 2 and 3, and preferably is between 1 mm and 4 mm.
  • the upper end of the side wall 3 defines the opening 5 through which the preparation can be introduced into the room 1a.
  • the annular end 6 of the upper ring 4 located at the opening 5 comprises a first rigid armature 7 (or upper armature).
  • the frame 7 may be, for example, plastic (in particular thermoset or type PA 6.6) or metal such as stainless steel or aluminum.
  • the frame 7 may in particular be a wire with a diameter of between 1mm and 5mm.
  • the armature 7, advantageously disposed over the entire periphery of the mold, is located at the opening 5. It is connected to the side wall 3 only by the crown 4, at a distance from the opening 5. This distance is typically between 10mm and 40mm.
  • the armature 7 will preferably be located at a distance from the opening 5 of between 0.08 and 0.14 times this diameter. preferably 0.12 times.
  • the ring 4 is connected to the upper part of the side wall 3 by means of an upwardly convex bead, 8.
  • This zone 8 makes it easier to demould, by constituting the initiation the curvature of the side wall 3 for demolding. Indeed, the most important effort is to break the angle that the crown 4 at the side wall 3 is no longer necessary.
  • the frame 7 has the shape of a circular ring, including section.
  • the ring 4 is made in continuity and in the same material as the piece 1a. It could however use a removable crown 4.
  • the armature is embedded in the material constituting the ring 4 at the location of the protrusion 6 located at the radial end thereof.
  • the armature 7 is releasably connected to the crown, by force engagement in a perimetric groove 9 partially open towards the inside.
  • at the level of the frame 7 means adapted to cooperate with removable gripping utensils.
  • the mold described above typically corresponds to that presented in PR-A-2,827,494.
  • the mold of the invention differs from that described in this prior application, in particular by the presence of another rigid reinforcement, in particular identified as 11, 11a, 11b, 11d and 11d, respectively in FIGS. 1, 2, 9, 10 and 11.
  • This second reinforcement is located in the lower part of the hollow part 1a and connected to it so as to favor demolding of the cooking preparation, even stabilize the shape of the bottom 2.
  • the lower armature can be annular or substantially annular, with a round section, as illustrated in Figures 4 and 5.
  • the rigid ring 11 is connected to the bottom wall 2 being located nearby of the junction between this bottom and the side wall 3.
  • the annular ring 11 can be either embedded inside the elastomeric material of the hollow part 1a or to report on that within a narrow-necked retaining groove 13 extending annularly at the periphery of the bottom 2, with the access opening preferably located outwards (under the bottom), as well as shows the Figure 7.
  • the ring solution 11 embedded in Figure 6 will be preferred a priori, for reasons of cost, ease of cleaning of the mold and therefore cleanliness thereof.
  • the stiffening armature implies that this armature is present during the production of the hollow part la which is typically manufactured by molding.
  • Another solution is to use not a ring 11, but a plate located at the bottom of the mold ( Figures 2 and 8 to 13). The plate preferably extends over the entire surface of the bottom 2.
  • the connection between the piece 1a and the plate can be achieved in particular in two ways: either the plate is embedded in the flexible material of the piece located at the place of the bottom 2 (FIG.
  • the plate is connected at the periphery to the part 1a by the introduction into a horizontal groove 15 extending peripherally (preferably over all the perimeter), turned inward and belonging to a ledge 17 of the room.
  • the manufacture of the piece is done by molding. If we want to block the plate vis-à-vis the room, the plate being placed in the molding mold before the flexible material is provided: the withdrawal and elasticity of the material block in the first case the plate opposite the flange 17. If not, one molds the flexible piece la, with its groove 15, then one comes to engage the peripheral edge of the base plate lie or lld, to hold it while allowing its removal, for example for a separate wash.
  • the plate (11a) may be a sheet (metal) or a rigid plastic plate (preferably thermosetting). If it is removable vis-à-vis the room la, we recommend a "coated" plate, lined at least on its upper face 19 with a release coating 21 such as polytetrafluoroethylene (PTFE). In this case, almost the entire bottom 2 is then made by a solid disc with a non-stick surface clipped to the piece.
  • a plate solution as in FIGS. 2, 8, 9, and 10 to 13 with respect to the ring-shaped solution as in FIGS. 1, 6 and 7 is the best rigidity of the bottom which can not be obtained. deforming, whether during demolding or under the weight of the preparation, if the plate is sufficiently rigid.
  • the user has not, when demolding, to think where to place his fingers on the bottom: it always meets a rigid area where to press.
  • the solid plate 11 has a rigid plate 23 lined on the upper face with a thermal and / or anti-scratch and / or non-adhesive protective coating 21. The plate 11 is clipped peripherically in the groove 15 mentioned above.
  • peripheral bulges or protruding lips are substantially d equal PI depth in the plane of the bottom 2 of the mold.
  • the corresponding depths, respectively P2 and P3, are unequal.
  • the depth P2 above the plate 11d may be low (approximately 1 to 10 mm) relative to P3 (ratio P3 / P2 of between more than one and 20/1, and preferably between 5/1 and 10/1).
  • the lower bulge 35b defines a continuous bottom wall, annular, limited towards its center by a hole 27 that will cover the reinforcing plate such as lld. If such a bottom opening is provided (favorable for demolding) the side wall 3 of the hollow part will therefore define, at its lower base, the perimeter of a bottom surface of which only a portion is occupied by said bottom wall 35b which is then a ring of material connected periphériquement and so monobloc side wall 3.
  • Such a bottom wall 35b may be thicker (see Figure 12) that the side wall 3 (thickness e2).
  • this plate will be supported by a support wall (35b) and retained above by one or more narrow bulges 35a the now pressed against the wall 35b, in current use, the hole 27 for pushing on the plate lld from the outside, to remove for example at the time of cleaning.
  • the annular surface defined by the ring of material 35b will occupy between 1/5 and 4/5, and preferably between 1/3 and 2/3, of the total surface area of the bottom surface.
  • the hollow part surface of the reinforcement plate if it is full, and extends from the center to the boundary between the bottom and the side wall 3). Rather than an upper lip 35a continues, several sections (especially three or four) may be preferred.
  • the bottom plate 11d will be full. It may be removable vis-a-vis the hollow part. 12, such a plate, here marked lie, full and removable, is only placed on the annular bottom wall 35b. There is no longer any lip or bulge of restraint above the plate. It is the weight of the dough (or a solid content in the room la) that holds the plate in the bottom of the room. If we return the empty mold, the plate falls.
  • the solid bottom plate 11f has an annular step 29 situated at an intermediate portion between its periphery and its center. the bottom material ring of the hollow part has differences in thickness.
  • the ring 35bl of bottom material of the hollow part has it externally a face 350 substantially substantially flat (beyond possibly an outer perimeter bead 351) and, internally, a face 352 having an annular shoulder 353, so as to be thicker at the periphery than in the central part.
  • the plate 11f substantially follows the surface defined by the inner face 352 of the bottom material ring, so that this rigid bottom plate has two opposite curvilinear faces between the center and the periphery, as illustrated in FIG. better to thermal stresses.
  • the plate 11f can be removable. Here it has been wedged periphtherically in the slot 150, between the material ring 35bl and an upper lip 35a which may be identical to that of Figure 11, for example.
  • the plates lie, llf may be glass, although the other choices above are possible, all plates can also be interchanged between the embodiments.
  • the demolding of the molds shown in the figures can take place particularly in two ways, depending on whether one demoulded at the place, or upside down.
  • mold in place horizontal.
  • the operator pushes the upper edge of the piece, the upper armature 7 (if it is provided), downwards and bottom up, by acting on the armature 11 ... concerned.
  • Without necessarily placing the mold on a support it continues its movement until the bottom 2 passes above the level of the opening 5, to end by returning the mold in glove finger, the elasticity and deformability of the side wall 3 allowing it, this until separation between the plate and the piece, (if the plate is removable).
  • the bottom With the rigidity of the bottom, it retains its shape, without curling so that there is less risk of damaging the preparation, especially if it is a cake. Even if the outer edge with the crown 4 is preferred to a simple bead of high wall limit, it could not be expected, likewise for the upper armature 7.
  • the plate of bottom dregs, lld, llf can be removable.

Abstract

The baking tin comprises a hollow part (la) made of a flexible material having a side wall (3) whose upper end defines an opening (5), and a rigid reinforcement (7). Another annular or disk-shaped reinforcement (11') is linked to the bottom (2), close to the join with the side wall (3).

Description

MOULE SOUPLE RIGIDIFIE La présente invention concerne un moule utilisé pour réaliser des préparations culinaires du type gâteaux, pâtisserie... On connaît des moules en métal présentant une très grande rigidité, ce gui ne facilite pas le démoulage de la préparation. On connaît aussi des moules en silicone qui ont l'avantage de passer au four, au four à micro-ondes, au réfrigérateur, au congélateur et au lave-vaisselle sans subir d'altération, mais qui manquent de rigidité. On peut citer trois inconvénients ayant leur origine dans une grande élasticité des élastomères : le démoulage de la préparation est difficile, la manipulation du moule est peu aisée et la préparation non cuite (souvent liquide) peut facilement déborder pendant la manipulation du moule. Des solutions ont été proposées pour obtenir un moule suffisamment souple par la réalisation de surépaisseur localisées de matière. Cependant les performances obtenues pour le démoulage et pour le maintien de la préparation liquide ne sont pas toujours satisfaisantes . Le brevet FR 2 827 494 décrit un moule en élastomere silicone pour une préparation culinaire à cuire ou à chauffer au four. Le démoulage s'opère comme suit : moule à l'endroit (ouverture vers le haut), on pose le fond du moule sur un support . On exerce alors en direction du support une pression vers le bas sur l'armature , de façon à courber la paroi latérale et amener l'ouverture supérieure sensiblement au niveau du fond. Pour intéressante qu'elle soit cette solution n'est toutefois pas parfaitement satisfaisante en particulier pour le démoulage de toutes les préparations, dès lors que la paroi latérale recourbée laisse un bourrelet saillant vers le haut en périphérie du fond, constituant un obstacle à la sortie par exemple d'un gâteau mou ou à la bonne introduction d'une pelle à tarte. Le moule n'est pas non plus très stable (fond flasque/déformable au démoulage) . Le problème ici posé est donc de réaliser un nouveau moule pour préparation culinaire permettant un démoulage très aisé de la préparation solide et, potentiellement, favorisant la tenue à la déformation du moule notamment s'il contient une préparation liquide ou lourde, qu'elle soit cuite ou à cuire. La solution proposée est un moule pour préparation culinaire du type ci-dessus caractérisé en ce qu'il comprend une armature rigide située en partie inférieure de la pièce creuse (vers son fond) et liée à elle. On conserve sa souplesse à l'ensemble du moule, en améliorant certains démoulages ainsi que la stabilité de la forme et/ou la tenue du fond. Mais certaines préparations peuvent continuer à poser un problème de poids, voire encore de démoulage. Il est alors proposé dans l'invention que cette armature rigide « inférieure » se présente comme (au moins) une plaque située à l'endroit du fond du moule. On conseille également que la paroi latérale de la pièce creuse définisse, en partie inférieure, le périmètre d'une surface de fond dont une partie seulement sera occupée par la paroi de fond en matériau élastomere, cette paroi se présentant alors comme un anneau de matière raccordée périphériquement à la paroi latérale, avec donc une ouverture centrale. Un accès à la plaque de fond ou à l'intérieur du moule est alors permis . Si cette plaque de fond s'étend, en périphérie extérieure, sensiblement jusqu'à la jonction entre le fond et la paroi latérale, on renforcera (comme d'ailleurs dans une solution précédente à anneau de fond) l'effet de charnière entre le fond et la paroi latérale lors du démoulage. Si de surcroît, intérieurement, ladite plaque s'étend jusqu'au centre du fond, occupant ainsi l'essentiel au moins de la surface de ce fond, on favorisera la tenue mécanique du fond, empêchant les effets de « ventres » sous le poids et assurant une stabilité accrue de forme au fond, en toutes circonstances . Un aspect de l'invention concerne par ailleurs la liaison entre la pièce creuse et l'armature de fond, lorsque celle-ci est une plaque. La solution privilégiée pour associer qualité de démoulage, prix de revient du moule et facilité de fabrication consiste en ce que : - la plaque rigide de fond est pleine, amovible vis à vis de la pièce creuse et est uniquement posée sur ledit anneau de matière de fond de cette pièce creuse, et /ou intérieurement, en partie inférieure de sa paroi latérale, la pièce creuse présente au moins une lèvre saillante s 'étendant au dessus dudit anneau de matière de fond et la plaque rigide de fond est pleine et retenue par coincement entre l'anneau de matière de fond et la lèvre saillante, ou - la plaque est liée par moulage à la pièce creuse par sa périphérie où elle est prisonnière d'une gorge périphérique de la pièce creuse définissant un rebord intérieur. Pour favoriser la stabilité d'un fond annulaire en élastomere et /ou de la plaque de fond face aux contraintes thermiques, on conseille que : - l'anneau de matière de fond de la pièce creuse présente des différences d'épaisseur, et/ou cet anneau de matière de fond présente extérieurement une face sensiblement plane et intérieurement une face avec un epaulement annulaire, de manière à être plus épais en périphérie qu'en partie centrale, et la plaque rigide de fond, disposée dans la pièce creuse, suit sensiblement la surface définie par ladite face intérieure de l'anneau de matière de fond, de sorte que cette plaque rigide de fond présente deux faces opposées curvilignes entre le centre et la périphérie . Grâce à tout ou partie des caractéristiques qui précèdent, deux techniques de démoulage sont particulièrement conseillées. Dans le premier cas, on exerce une pression sur le moule tendant à rapprocher le niveau de la paroi de fond et celui de 1 ' armature « supérieure » bordant l'ouverture, en courbant ainsi la paroi latérale du moule qui se retourne sur elle-même, jusqu'à faire passer la paroi de fond au-dessus du niveau de l'extrémité supérieure du moule. Dans le second cas, on place d'abord le moule à l'envers, puis on agit sur les deux armatures pour rapprocher le fond et l'ouverture, expulsant ainsi la préparation hors du moule. Un troisième cas est même envisageable : démoulage par retournement du moule disposé avec son ouverture vers le haut et posé sur une contre-forme . Dans tous les cas la rigidité d'ensemble du moule est suffisante pour pouvoir utiliser des ustensiles de préhension, par exemple des manches amovibles. D'autres particularités et avantages de l'invention apparaîtront dans la description ci-dessous d'un mode de réalisation donné à titre d'exemple non limitatif . Aux dessins annexés : - la figure 1 représente une vue en perspective trois-quarts de dessous d'un moule selon l'invention ; - la figure 2 représente une vue en coupe selon la ligne II-II de la figure 1; - la figure 3 montre le détail III de la figure 2; - la figure 4 représente, vue de dessus, une armature rigide utilisée dans un moule selon la présente invention ; - la figure 5 représente une vue en coupe selon l'axe V-V de l'armature de la figure 4; et - les figures 6 à 13 représentent chacune une coupe locale d'une possible réalisation adaptée du moule, suivant la même coupe que la figure 2. Tel qu'on peut le voir en particulier aux figures 1 et 2 , le moule à préparation culinaire 1 selon la présente invention se présente comme une pièce creuse la en un matériau souple (aisément déformable) , élastomere (donc à caractéristiques élastiques) , par exemple en silicone. Cette pièce creuse forme le récipient à l'intérieur duquel la préparation culinaire peut être disposée. Elle comporte une paroi de fond 2, une paroi latérale 3 qui se dresse du fond et de préférence une couronne supérieure 4 définissant un rebord extérieur de raidissement et de préhension qui s'étend radialement à partir de la partie supérieure de la paroi latérale 3, autour de l'ouverture 5 (la pièce est supposée ici de section circulaire) . Le moule 1 peut avoir différentes formes : ronde, rectangulaire, elliptique... S'il est rond comme illustré, pour un diamètre d'ouverture 5 de l'ordre de 240mm, l'épaisseur de la couronne 4 est en général comprise entre 0,5% et 1,5% de ce diamètre, de préférence 1%. Dans un mode de réalisation préférentiel, l'épaisseur de la couronne 4 est du même ordre de grandeur que les parois de fond 2 et latérale 3, et de préférence, est comprise entre 1 mm et 4 mm. L'extrémité supérieure de la paroi latérale 3 délimite l'ouverture 5 par laquelle la préparation peut être introduite dans la pièce la. L'extrémité annulaire 6 de la couronne supérieure 4 située au niveau de 1 ' ouverture 5 comporte une première armature rigide 7 (ou armature supérieure) . L'armature 7 peut être, par exemple, en matière plastique ( en particulier thermodurcie ou type PA 6.6) ou en métal tel qu'en acier inoxydable ou en aluminium. L'armature 7 peut en particulier être un fil d'un diamètre compris entre 1mm et 5mm. L'armature 7, disposée avantageusement sur toute la périphérie du moule, est située au niveau de l'ouverture 5. Elle est reliée à la paroi latérale 3 uniquement par la couronne 4 , à distance de l'ouverture 5. Cette distance est typiquement comprise entre 10mm et 40mm. Pour un moule dont l'ouverture 5 a un diamètre de 240mm et dont la hauteur est de 50mm environ, l'armature 7 sera de préférence située à une distance de l'ouverture 5 comprise entre 0,08 et 0,14 fois ce diamètre, de préférence 0,12 fois. Dans le mode de réalisation illustré, la couronne 4 est reliée à la partie supérieure de la paroi latérale 3 par l'intermédiaire d'un bourrelet convexe vers le haut , 8. Cette zone 8 permet de faciliter le démoulage, en constituant l'initiation de la courbure de la paroi latérale 3 permettant le démoulage. En effet, l'effort le plus important consistant à rompre l'angle que font la couronne 4 à la paroi latérale 3 n'est plus nécessaire. Dans l'exemple illustré par les figures 4 et 5, l'armature 7 a la forme d'un anneau circulaire, y compris en section. Dans l'exemple illustré par les figures, la couronne 4 est réalisée en continuité et dans le même matériau que la pièce la. On pourrait toutefois utiliser une couronne 4 amovible. Sur la figure 1, l'armature est noyée dans le matériau constituant la couronne 4, à l'endroit de l'excroissance 6 située à l'extrémité radiale de celle-ci. Sur les figures 2 et 3 , l'armature 7 est liée à la couronne de façon amovible, par engagement à force dans une gorge périmétrique 9 partiellement ouverte vers l'intérieur. Bien que non représenté dans les figures, il est possible de disposer au niveau de l'armature 7 de moyens adaptés à coopérer avec des ustensiles de préhension amovibles . Le moule décrit ci-avant correspond typiquement à celui présenté dans PR-A-2 827 494. Le moule de l'invention se distingue de celui décrit dans cette demande antérieure en particulier par la présence d'une autre armature rigide notamment repérée 11, lia, 11b, lie et lld, respectivement sur les figures 1, 2, 9, 10 et 11. Cette seconde armature est située en partie inférieure de la pièce creuse la et liée à elle de façon à favoriser le démoulage de la préparation culinaire, voire stabiliser la forme du fond 2. Lors du démoulage ou lors du transport du moule plein. A l'image de l'armature supérieure 7, l'armature inférieure peut être annulaire ou sensiblement annulaire, avec une section ronde, comme illustré sur les figures 4 et 5. Dans ce cas, on conseille, comme montré sur les figures 6 et 7 que l'anneau 11 rigide soit lié à la paroi de fond 2 en étant situé à proximité de la jonction entre ce fond et la paroi latérale 3. On remarquera dans la solution des figures 6 et 7 que le jonc annulaire 11 peut être soit noyé à l'intérieur de la matière élastomere de la pièce creuse la, soit à rapporter sur celle-ci à l'intérieur d'une gorge à col étroit de retenue 13 s ' étendant de façon annulaire en périphérie du fond 2 , avec 1 ' ouverture d'accès de préférence située vers l'extérieur (sous le fond) , ainsi que le montre la figure 7. La solution d'anneau 11 noyé de la figure 6 sera toutefois a priori préférée, pour des questions de coût, de facilité de nettoyage du moule et donc de propreté de celui-ci. En outre, disposée ainsi l'armature de rigidification implique que cette armature soit présente lors de la réalisation de la pièce creuse la qui est typiquement fabriquée par moulage . Une autre solution consiste à utiliser non pas un jonc 11, mais une plaque située à l'endroit du fond du moule (figures 2 et 8 à 13) . La plaque s'étend de préférence suivant toute la surface du fond 2. La liaison entre la pièce la et la plaque peut être réalisée en particulier de deux manières : soit la plaque est noyée dans la matière souple de la pièce située à l'endroit du fond 2 (figure 8), soit la plaque est liée en périphérie à la pièce la, par l'introduction dans une gorge 15 horizontale s' étendant périphériquement (de préférence sur -tout- le périmètre), tournée vers l'intérieur et appartenant à un rebord 17 de la pièce la. Dans les deux cas, la fabrication de la pièce la s'effectue par moulage. Si l'on veut bloquer la plaque vis-à-vis de la pièce la, la plaque étant placée dans le moule de moulage avant que la matière souple soit apportée : le retrait et l'élasticité de la matière bloquent dans le premier cas la plaque vis à vis du rebord 17. Sinon, on moule la pièce souple la, avec sa gorge 15, puis on vient y engager le bord périphérique de la plaque de fond lie ou lld, pour l'y retenir tout en autorisant son retrait, par exemple pour un lavage séparé. Si la plaque (lia) est noyée, il peut s'agir d'une tôle (métallique) ou d'une plaque plastique rigide (thermodurcissable de préférence) . Si elle est amovible vis-à-vis de la pièce la, on conseille une plaque "revêtue", doublée au moins sur sa face supérieure 19 par un revêtement anti-adhésif 21 tel que du polytétrafluoréthylène (PTFE) . Dans ce cas, la quasi totalité du fond 2 est alors réalisée par un disque plein à surface anti-adhésive clipsée à la pièce la. L'avantage d'une solution à plaque comme sur les figures 2, 8, 9, et 10 à 13 par rapport à la solution à jonc annulaire comme sur les figures 1, 6 et 7 est la meilleure rigidité du fond qui ne peut se déformer, que ce soit pendant le démoulage ou sous le poids de la préparation, si la plaque est suffisamment rigide. En outre, l'utilisateur n'a pas, lors du démoulage, à réfléchir où placer ses doigts sur le fond: il rencontre toujours une zone rigide où appuyer. A noter qu'une solution à paroi de fond localement renforcée par plusieurs plaques localisées, si nécessaire liées entre elles par un jonc, pourrait à cet égard, apporter satisfaction (solution non représentée) . Sur la figure 10, la plaque pleine lie présente une plaque rigide 23 doublée en face supérieure par un revêtement de protection thermique et/ou anti-rayures et/ou anti-adhésif 21. La plaque lie est clipsée periphériquement dans la gorge 15 précitée. On notera que les renflements périphériques, ou lèvres saillantes, (continus ou non) , respectivement supérieur (e) et inférieur (e) 25a, 25b, que forme la pièce la vers son fond ou à la base de sa paroi latérale sont sensiblement d'égale profondeur PI dans le plan du fond 2 du moule. Par contre, sur la figure 11, les profondeurs correspondantes, respectivement P2 et P3 , sont inégales. En particulier, la profondeur P2 au dessus de la plaque lld peut être faible (1 à 10 mm environ) par rapport à P3 (rapport P3/P2 compris entre plus d'un et 20/1, et de préférence entre 5/1 et 10/1) . A cet égard, on conseille que le renflement inférieur 35b définisse une paroi de fond continue, annulaire, limitée vers son centre par un trou 27 que viendra recouvrir la plaque de renfort telle que lld. Si une telle ouverture de fond est prévue (favorable pour démouler) la paroi latérale 3 de la pièce creuse définira donc, à sa base inférieure, le périmètre d'une surface de fond dont une partie seulement est occupée par ladite paroi de fond 35b qui se présente alors comme un anneau de matière raccordée periphériquement et de façon donc monobloc à la paroi latérale 3. Une telle paroi de fond 35b pourra être plus épaisse (voir el figure 12) que la paroi latérale 3 (épaisseur e2 ) . Ainsi, cette plaque sera soutenue par une paroi support (35b) et retenue au-dessus par un ou plusieurs renflements étroits 35a la maintenant plaquée contre la paroi 35b, en utilisation courante, le trou 27 permettant de pousser sur la plaque lld depuis l'extérieur, pour la retirer par exemple au moment du nettoyage . Avantageusement, et comme déjà indiqué, la surface annulaire définie par l'anneau de matière 35b occupera entre 1/5 et 4/5, et de préférence entre 1/3 et 2/3, de la surface totale de la surface de fond de la pièce creuse (surface de la plaque de renfort si celle-ci est pleine, et s'étend du centre jusqu'à la limite entre le fond et la paroi latérale 3) . Plutôt qu'une lèvre supérieure 35a continue, plusieurs tronçons (en particulier trois ou quatre) pourront être préférés. On aura alors une gorge périphérique 150 de clipsage de la plaque qui sera discontinue (figure 11) . Si l'ouverture de fond 27 est prévue, la plaque de fond lld sera pleine. Elle pourra être amovible vis à vis de la pièce creuse . Figure 12, une telle plaque, ici repérée lie, pleine et amovible, est uniquement posée sur la paroi de fond annulaire 35b. Il n'y a plus de lèvre ou renflement de retenue au dessus de la plaque. C'est le poids de la pâte (ou d'un contenu solide disposé dans la pièce la) qui maintient la plaque dans le fond de la pièce. Si on retourne le moule vide, la plaque tombe. Sur la figure 13, la plaque pleine de fond llf présente une marche annulaire 29 située en partie intermédiaire entre sa périphérie et son centre. l'anneau de matière de fond de la pièce creuse présente des différences d'épaisseur. L'anneau 35bl de matière de fond de la pièce creuse la présente extérieurement une face 350 essentiellement sensiblement plane (au-delà éventuellement d'un bourrelet périmétrique extérieur 351) et, intérieurement, une face 352 présentant un epaulement annulaire 353, de manière à être plus épais en périphérie qu'en partie centrale. La plaque llf suit sensiblement la surface définie par la face intérieure 352 de l'anneau de matière de fond, de sorte que cette plaque rigide de fond présente deux faces opposées curvilignes entre le centre et la périphérie, comme illustré figure 13. On résiste ainsi mieux aux contraintes thermiques . La plaque llf peut être amovible. On l'a ici coincée periphériquement dans la fente 150, entre l'anneau étage de matière 35bl et une lèvre supérieure 35a qui peut être identique à celle de la figure 11, par exemple. Les plaques lie, llf pourront être en verre, bien que les autres choix ci-avant soit possibles, toutes les plaques pouvant d'ailleurs être interverties entre les modes de réalisation. Le démoulage des moules représentés aux figures peut s'opérer particulièrement de deux façons, suivant que l'on démoule à l'endroit, ou à l'envers. Première hypothèse: moule à l'endroit, horizontal. L'opérateur pousse le bord supérieur de la pièce la, de l'armature supérieure 7 (si elle est prévue) , vers le bas et le fond vers le haut, en agissant sur l'armature 11... concernée. Sans nécessairement poser le moule sur un support, il poursuit son mouvement jusqu'à faire passer le fond 2 au-dessus du niveau de l'ouverture 5, pour finir par retourner le moule en doigt de gant, l'élasticité et la déformabilité de la paroi latérale 3 le permettant, ceci jusqu'à séparation entre la plaque et la pièce la, (si la plaque est amovible) . Le jonc 11, et plus encore les plaques lia... permettent alors de glisser si nécessaire un ustensile le long de la paroi supérieure totalement dégagée du fond . Aucun rebord ne gêne . Lors de ce retournement en doigt de gant, la disposition du jonc ou du bord périmétrique de la plaque à l'endroit du changement de pente entre la paroi latérale 3 et le fond 2 accentue l'effet de charnière à cet endroit . Deuxième hypothèse: moule à l'envers, tenu par l'utilisateur. Ce dernier pousse sur la périphérie du fond en même temps qu'il tire sur la couronne 4, en soulevant légèrement le moule de préférence. La paroi latérale se plie extérieurement sur elle-même. La préparation est poussée hors du moule qui tend, à nouveau, à se replier en doigt de gant, cette fois-ci vers le bas. Avec la rigidité du fond, celui-ci conserve sa forme, sans se gondoler de manière telle qu'on risque moins d'endommager la préparation, en particulier s'il s'agit d'un gâteau. Même si le rebord extérieur avec la couronne 4 est préféré à un simple bourrelet de limite haute de paroi, on pourrait ne pas le prévoir, de même pour l'armature supérieure 7. Eventuellement, sur les figures 10, 11 et 13 la plaque de fond lie, lld, llf peut être amovible. The present invention relates to a mold used to make culinary preparations of the cakes, bakery ... type. Metal molds are known that have a very high rigidity, which does not facilitate the demolding of the preparation. Silicone molds are also known which have the advantage of being oven, microwave, refrigerator, freezer and dishwasher free from tampering but lacking rigidity. There may be mentioned three drawbacks that have their origin in a high elasticity of the elastomers: the demolding of the preparation is difficult, the handling of the mold is not easy and the uncooked preparation (often liquid) can easily overflow during the handling of the mold. Solutions have been proposed to obtain a sufficiently flexible mold by achieving localized thickness of material. However, the performances obtained for demolding and for maintaining the liquid preparation are not always satisfactory. FR 2 827 494 discloses a silicone elastomer mold for a cooking preparation to bake or to heat in the oven. The demolding is carried out as follows: mold in place (opening upwards), the bottom of the mold is placed on a support. In the direction of the support, a downward pressure is then exerted on the armature so as to bend the side wall and bring the upper opening substantially to the level of the bottom. For interesting that it is this solution is however not perfectly satisfactory especially for the demolding of all preparations, since the curved side wall leaves a bead protruding upward periphery of the bottom, constituting an obstacle to the exit for example of a soft cake or the good introduction of a pie shovel. The mold is also not very stable (bottom flange / deformable release mold). The problem posed here is therefore to make a new mold for culinary preparation allowing very easy demolding of the solid preparation and, potentially, promoting the holding deformation of the mold especially if it contains a liquid or heavy preparation, whether it be cooked or cooked. The proposed solution is a mold for culinary preparation of the type above characterized in that it comprises a rigid frame located in the lower part of the hollow part (towards its bottom) and connected to it. It retains its flexibility to the entire mold, improving some molds and the stability of the shape and / or holding the bottom. But some preparations may continue to pose a problem of weight, or even demolding. It is then proposed in the invention that this rigid reinforcement "lower" is (at least) a plate located at the bottom of the mold. It is also recommended that the side wall of the hollow part defines, in the lower part, the perimeter of a bottom surface of which only a part will be occupied by the bottom wall made of elastomeric material, this wall then presenting itself as a ring of material peripherally connected to the side wall, thus with a central opening. Access to the bottom plate or inside the mold is then allowed. If this bottom plate extends, at the outer periphery, substantially to the junction between the bottom and the side wall, it will be reinforced (as indeed in a previous solution with a bottom ring) the hinge effect between the bottom and the side wall during demolding. If in addition, internally, said plate extends to the center of the bottom, thus occupying the essential at least the surface of the bottom, it will promote the mechanical strength of the bottom, preventing the effects of "bellies" under the weight and providing increased form stability at the bottom, in all circumstances. An aspect of the invention also relates to the connection between the hollow part and the bottom frame, when the latter is a plate. The preferred solution for combining demolding quality, mold cost and ease of manufacture is that: - the rigid bottom plate is solid, removable from the hollow part and is only placed on said ring of material of bottom of this hollow part, and / or internally, in the lower part of its side wall, the hollow part has at least one protruding lip extending above said ring of bottom material and the bottom rigid plate is solid and retained by wedging between the bottom material ring and the protruding lip, or - the plate is molded to the hollow part by its periphery where it is trapped in a peripheral groove of the hollow part defining an inner rim. To promote the stability of an annular elastomer bottom and / or the bottom plate against thermal stresses, it is recommended that: the bottom material ring of the hollow part has differences in thickness, and / or this bottom material ring has a substantially flat face and an inside face with an annular shoulder, so as to be thicker in periphery that in the central part, and the rigid bottom plate, disposed in the hollow part, substantially follows the surface defined by said inner face of the bottom material ring, so that this rigid bottom plate has two opposite faces curvilinear between the center and the periphery. Thanks to all or some of the above characteristics, two demolding techniques are particularly recommended. In the first case, pressure is exerted on the mold tending to bring the level of the bottom wall and that of the "upper" armature bordering the opening, thereby bending the side wall of the mold which turns on it. same, to pass the bottom wall above the level of the upper end of the mold. In the second case, we first place the mold upside down, then we act on the two frames to bring the bottom and the opening, thus expelling the preparation out of the mold. A third case is even conceivable: demolding by turning the mold disposed with its opening upwards and placed on a counter-form. In all cases the overall rigidity of the mold is sufficient to use gripping utensils, for example removable sleeves. Other features and advantages of the invention will appear in the description below of an embodiment given by way of non-limiting example. In the accompanying drawings: - Figure 1 shows a perspective view three-quarter from below of a mold according to the invention; - Figure 2 shows a sectional view along the line II-II of Figure 1; - Figure 3 shows the detail III of Figure 2; FIG. 4 represents, seen from above, a rigid reinforcement used in a mold according to the present invention; - Figure 5 shows a sectional view along the axis VV of the armature of Figure 4; and FIGS. 6 to 13 each represent a local section of a possible adapted embodiment of the mold, according to the same section as FIG. 2. As can be seen in particular in FIGS. 1 and 2, the culinary preparation mold 1 according to the present invention is a hollow part la in a flexible material (easily deformable), elastomer (so elastic characteristics), for example silicone. This hollow part forms the container inside which the culinary preparation can be arranged. It comprises a bottom wall 2, a side wall 3 which is raised from the bottom and preferably an upper ring 4 defining an outer stiffening and gripping flange which extends radially from the upper part of the side wall 3, around the opening 5 (the piece is supposed here of circular section). The mold 1 can have different shapes: round, rectangular, elliptical ... If it is round as illustrated, for an opening diameter 5 of the order of 240 mm, the thickness of the crown 4 is generally between 0.5% and 1.5% of this diameter, preferably 1%. In a preferred embodiment, the thickness of the ring 4 is of the same order of magnitude as the bottom and side walls 2 and 3, and preferably is between 1 mm and 4 mm. The upper end of the side wall 3 defines the opening 5 through which the preparation can be introduced into the room 1a. The annular end 6 of the upper ring 4 located at the opening 5 comprises a first rigid armature 7 (or upper armature). The frame 7 may be, for example, plastic (in particular thermoset or type PA 6.6) or metal such as stainless steel or aluminum. The frame 7 may in particular be a wire with a diameter of between 1mm and 5mm. The armature 7, advantageously disposed over the entire periphery of the mold, is located at the opening 5. It is connected to the side wall 3 only by the crown 4, at a distance from the opening 5. This distance is typically between 10mm and 40mm. For a mold whose opening 5 has a diameter of 240 mm and whose height is approximately 50 mm, the armature 7 will preferably be located at a distance from the opening 5 of between 0.08 and 0.14 times this diameter. preferably 0.12 times. In the illustrated embodiment, the ring 4 is connected to the upper part of the side wall 3 by means of an upwardly convex bead, 8. This zone 8 makes it easier to demould, by constituting the initiation the curvature of the side wall 3 for demolding. Indeed, the most important effort is to break the angle that the crown 4 at the side wall 3 is no longer necessary. In the example illustrated in Figures 4 and 5, the frame 7 has the shape of a circular ring, including section. In the example illustrated by the figures, the ring 4 is made in continuity and in the same material as the piece 1a. It could however use a removable crown 4. In Figure 1, the armature is embedded in the material constituting the ring 4 at the location of the protrusion 6 located at the radial end thereof. In Figures 2 and 3, the armature 7 is releasably connected to the crown, by force engagement in a perimetric groove 9 partially open towards the inside. Although not shown in the figures, it is possible to have at the level of the frame 7 means adapted to cooperate with removable gripping utensils. The mold described above typically corresponds to that presented in PR-A-2,827,494. The mold of the invention differs from that described in this prior application, in particular by the presence of another rigid reinforcement, in particular identified as 11, 11a, 11b, 11d and 11d, respectively in FIGS. 1, 2, 9, 10 and 11. This second reinforcement is located in the lower part of the hollow part 1a and connected to it so as to favor demolding of the cooking preparation, even stabilize the shape of the bottom 2. When demolding or when transporting the solid mold. Like the upper armature 7, the lower armature can be annular or substantially annular, with a round section, as illustrated in Figures 4 and 5. In this case, it is recommended, as shown in Figures 6 and 7 that the rigid ring 11 is connected to the bottom wall 2 being located nearby of the junction between this bottom and the side wall 3. It will be noted in the solution of Figures 6 and 7 that the annular ring 11 can be either embedded inside the elastomeric material of the hollow part 1a or to report on that within a narrow-necked retaining groove 13 extending annularly at the periphery of the bottom 2, with the access opening preferably located outwards (under the bottom), as well as shows the Figure 7. However, the ring solution 11 embedded in Figure 6 will be preferred a priori, for reasons of cost, ease of cleaning of the mold and therefore cleanliness thereof. In addition, thus arranged the stiffening armature implies that this armature is present during the production of the hollow part la which is typically manufactured by molding. Another solution is to use not a ring 11, but a plate located at the bottom of the mold (Figures 2 and 8 to 13). The plate preferably extends over the entire surface of the bottom 2. The connection between the piece 1a and the plate can be achieved in particular in two ways: either the plate is embedded in the flexible material of the piece located at the place of the bottom 2 (FIG. 8), or the plate is connected at the periphery to the part 1a by the introduction into a horizontal groove 15 extending peripherally (preferably over all the perimeter), turned inward and belonging to a ledge 17 of the room. In both cases, the manufacture of the piece is done by molding. If we want to block the plate vis-à-vis the room, the plate being placed in the molding mold before the flexible material is provided: the withdrawal and elasticity of the material block in the first case the plate opposite the flange 17. If not, one molds the flexible piece la, with its groove 15, then one comes to engage the peripheral edge of the base plate lie or lld, to hold it while allowing its removal, for example for a separate wash. If the plate (11a) is embedded, it may be a sheet (metal) or a rigid plastic plate (preferably thermosetting). If it is removable vis-à-vis the room la, we recommend a "coated" plate, lined at least on its upper face 19 with a release coating 21 such as polytetrafluoroethylene (PTFE). In this case, almost the entire bottom 2 is then made by a solid disc with a non-stick surface clipped to the piece. The advantage of a plate solution as in FIGS. 2, 8, 9, and 10 to 13 with respect to the ring-shaped solution as in FIGS. 1, 6 and 7 is the best rigidity of the bottom which can not be obtained. deforming, whether during demolding or under the weight of the preparation, if the plate is sufficiently rigid. In addition, the user has not, when demolding, to think where to place his fingers on the bottom: it always meets a rigid area where to press. It should be noted that a bottom-wall solution locally reinforced by several localized plates, if necessary linked together by a rod, could In this respect, give satisfaction (solution not shown). In FIG. 10, the solid plate 11 has a rigid plate 23 lined on the upper face with a thermal and / or anti-scratch and / or non-adhesive protective coating 21. The plate 11 is clipped peripherically in the groove 15 mentioned above. Note that the peripheral bulges or protruding lips (continuous or not), respectively upper (e) and lower (e) 25a, 25b, that form the piece la towards its bottom or at the base of its side wall are substantially d equal PI depth in the plane of the bottom 2 of the mold. On the other hand, in FIG. 11, the corresponding depths, respectively P2 and P3, are unequal. In particular, the depth P2 above the plate 11d may be low (approximately 1 to 10 mm) relative to P3 (ratio P3 / P2 of between more than one and 20/1, and preferably between 5/1 and 10/1). In this regard, it is advised that the lower bulge 35b defines a continuous bottom wall, annular, limited towards its center by a hole 27 that will cover the reinforcing plate such as lld. If such a bottom opening is provided (favorable for demolding) the side wall 3 of the hollow part will therefore define, at its lower base, the perimeter of a bottom surface of which only a portion is occupied by said bottom wall 35b which is then a ring of material connected periphériquement and so monobloc side wall 3. Such a bottom wall 35b may be thicker (see Figure 12) that the side wall 3 (thickness e2). Thus, this plate will be supported by a support wall (35b) and retained above by one or more narrow bulges 35a the now pressed against the wall 35b, in current use, the hole 27 for pushing on the plate lld from the outside, to remove for example at the time of cleaning. Advantageously, and as already indicated, the annular surface defined by the ring of material 35b will occupy between 1/5 and 4/5, and preferably between 1/3 and 2/3, of the total surface area of the bottom surface. the hollow part (surface of the reinforcement plate if it is full, and extends from the center to the boundary between the bottom and the side wall 3). Rather than an upper lip 35a continues, several sections (especially three or four) may be preferred. There will then be a peripheral groove 150 for clipping the plate which will be discontinuous (FIG. 11). If the bottom opening 27 is provided, the bottom plate 11d will be full. It may be removable vis-a-vis the hollow part. 12, such a plate, here marked lie, full and removable, is only placed on the annular bottom wall 35b. There is no longer any lip or bulge of restraint above the plate. It is the weight of the dough (or a solid content in the room la) that holds the plate in the bottom of the room. If we return the empty mold, the plate falls. In FIG. 13, the solid bottom plate 11f has an annular step 29 situated at an intermediate portion between its periphery and its center. the bottom material ring of the hollow part has differences in thickness. The ring 35bl of bottom material of the hollow part has it externally a face 350 substantially substantially flat (beyond possibly an outer perimeter bead 351) and, internally, a face 352 having an annular shoulder 353, so as to be thicker at the periphery than in the central part. The plate 11f substantially follows the surface defined by the inner face 352 of the bottom material ring, so that this rigid bottom plate has two opposite curvilinear faces between the center and the periphery, as illustrated in FIG. better to thermal stresses. The plate 11f can be removable. Here it has been wedged periphtherically in the slot 150, between the material ring 35bl and an upper lip 35a which may be identical to that of Figure 11, for example. The plates lie, llf may be glass, although the other choices above are possible, all plates can also be interchanged between the embodiments. The demolding of the molds shown in the figures can take place particularly in two ways, depending on whether one demoulded at the place, or upside down. First hypothesis: mold in place, horizontal. The operator pushes the upper edge of the piece, the upper armature 7 (if it is provided), downwards and bottom up, by acting on the armature 11 ... concerned. Without necessarily placing the mold on a support, it continues its movement until the bottom 2 passes above the level of the opening 5, to end by returning the mold in glove finger, the elasticity and deformability of the side wall 3 allowing it, this until separation between the plate and the piece, (if the plate is removable). The ring 11, and even more the plates 11a ... then allow to slide if necessary a utensil along the upper wall completely clear of the bottom. No rim hinders. During this flip-flop, the arrangement of the rod or the perimeter edge of the plate at the location of the change of slope between the side wall 3 and the bottom 2 accentuates the hinge effect at this location. Second hypothesis: mold upside down, held by the user. The latter grows on the periphery of the bottom at the same time as it pulls on the crown 4, slightly lifting the mold preferably. The side wall folds outwardly on itself. The preparation is pushed out of the mold which tends, again, to fold in glove finger, this time down. With the rigidity of the bottom, it retains its shape, without curling so that there is less risk of damaging the preparation, especially if it is a cake. Even if the outer edge with the crown 4 is preferred to a simple bead of high wall limit, it could not be expected, likewise for the upper armature 7. Optionally, in Figures 10, 11 and 13 the plate of bottom dregs, lld, llf can be removable.

Claims

REVENDICATIONS
1. Moule pour une préparation culinaire, comprenant une pièce creuse souple (la) en un matériau élastomere présentant une partie inférieure pourvue d'une paroi de fond (2) d'où se dresse une paroi latérale (3) dont l'extrémité supérieure définie une ouverture (5), caractérisé en ce qu'il comprend en outre une armature rigide (11 , lia, 11b...) située en partie inférieure de la pièce creuse, pour stabiliser la forme du fond (2) et/ou favoriser le démoulage de la préparation culinaire, au cours duquel démoulage la paroi latérale (3) est courbée. 1. Mold for culinary preparation, comprising a flexible hollow piece (la) of an elastomeric material having a bottom portion provided with a bottom wall (2) from which a side wall (3) is mounted, the upper end of which defined an opening (5), characterized in that it further comprises a rigid armature (11, 11a, 11b ...) located in the lower part of the hollow part, to stabilize the shape of the bottom (2) and / or promoting the demolding of the culinary preparation, during which demolding the side wall (3) is curved.
2. Moule selon la revendication 1, caractérisé en ce que ladite armature rigide (11) comprend au moins un jonc annulaire ou sensiblement annulaire, lié à la paroi de fond et située à proximité de la jonction entre ce fond et la paroi latérale (3) . 2. Mold according to claim 1, characterized in that said rigid armature (11) comprises at least one ring annular or substantially annular, connected to the bottom wall and located near the junction between the bottom and the side wall (3). ).
3. Moule selon la revendication 1 ou 2, caractérisé en ce que ladite armature rigide (lia, 11b...) se présente comme une plaque située à l'endroit du fond (2) du moule. 3. Mold according to claim 1 or 2, characterized in that said rigid armature (11a, 11b ...) is in the form of a plate located at the bottom of the mold (2).
4. Moule selon la revendication 3, caractérisé en ce que la plaque de fond s'étend, en périphérie extérieure, sensiblement jusqu'à la jonction entre le fond et la paroi latérale (3) et, intérieurement, de préférence jusqu'au centre du fond, occupant ainsi l'essentiel au moins de la surface de ce fond. 4. Mold according to claim 3, characterized in that the base plate extends, at the outer periphery, substantially to the junction between the bottom and the side wall (3) and internally, preferably to the center. from the bottom, thus occupying the essential at least the surface of this bottom.
5. Moule selon l'une des revendications précédentes, caractérisé en ce que l'armature (11, lia, 11b, lie.) comprend dans sa constitution l'un parmi un matériau métallique et un plastique dur. 5. Mold according to one of the preceding claims, characterized in that the armature (11, 11a, 11b, 11c) comprises in its constitution one of a metal material and a hard plastic.
6. Moule selon la revendication 3 ou l'une des revendications se rattachant à elle, caractérisé en ce que ladite plaque (11, lia, 11b...) est noyée dans le matériau constituant la pièce creuse (la) . 6. Mold according to claim 3 or one of the claims relating thereto, characterized in that said plate (11, 11a, 11b ...) is embedded in the material constituting the hollow part (1a).
7. Moule selon la revendication 3 ou l'une des revendications se rattachant à elle, caractérisé en ce que le matériau de la plaque (11b,...) est doublé , sur l'une au moins de ses faces, d'un revêtement antiadhérent (21) visible intérieurement sur le fond du moule . 7. Mold according to claim 3 or one of claims relating thereto, characterized in that the material of the plate (11b, ...) is doubled, on at least one of its faces, a anti-adhesive coating (21) visible internally on the bottom of the mold.
8. Moule selon la revendication 3 ou l'une des revendications se rattachant à elle, caractérisé en ce que la plaque est liée par moulage à la pièce creuse (la) par sa périphérie où elle est prisonnière d'une gorge périphérique (150) de la pièce creuse. 8. Mold according to claim 3 or one of the claims relating thereto, characterized in that the plate is molded to the hollow part (la) by its periphery where it is trapped in a peripheral groove (150) of the hollow part.
9. Moule selon la revendication 3 ou l'une des revendications se rattachant à elle, caractérisé en ce que la paroi latérale (3) de la pièce creuse (10a) définit, à l'endroit de ladite partie inférieure, le périmètre d'une surface de fond de cette pièce creuse dont une partie seulement est occupée par sa paroi de fond (35b, 35bl) qui se présente comme un anneau de matière raccordée periphériquement à la paroi latérale, avec donc une ouverture centrale (27) . 9. Mold according to claim 3 or one of the claims relating thereto, characterized in that the side wall (3) of the hollow part (10a) defines, at the location of said lower part, the perimeter of a bottom surface of this hollow part only part of which is occupied by its bottom wall (35b, 35bl) which is in the form of a ring of material periphériquement connected to the side wall, with a central opening (27).
10. Moule selon la revendication 9, caractérisé en ce que la surface annulaire définie par l'anneau de matière (35b, 35bl) occupe entre 1/5 et 4/5, et de préférence entre 1/3 et 2/3, de la surface totale de la surface de fond de la pièce creuse. 10. Mold according to claim 9, characterized in that the annular surface defined by the ring of material (35b, 35bl) occupies between 1/5 and 4/5, and preferably between 1/3 and 2/3, of the total area of the bottom surface of the hollow part.
11. Moule selon la revendication 9 ou 10, caractérisé en ce que la plaque (11b, lie, lld...) de fond est pleine, amovible vis à vis de la pièce creuse et est uniquement posée sur ledit anneau (35b, 35bl) de matière de fond de cette pièce creuse. 11. Mold according to claim 9 or 10, characterized in that the plate (11b, lie, lld ...) bottom is solid, removable vis-a-vis the hollow part and is only placed on said ring (35b, 35bl ) bottom material of this hollow piece.
12. Moule selon la revendication 9 ou 10, caractérisé en ce que : intérieurement, en partie inférieure de sa paroi latérale (3) , la pièce creuse (11) présente au moins une lèvre saillante (35a) s'étendant au dessus dudit anneau de matière de fond (35b, 35bl) de cette pièce creuse, et - la plaque de fond (lld, llf) est pleine et retenue par coincement entre l'anneau de matière de fond et la lèvre saillante. Mold according to claim 9 or 10, characterized in that: internally, in the lower part of its side wall (3), the hollow part (11) has at least one protruding lip (35a) extending above said bottom material ring (35b, 35bl) of this hollow part, and the bottom plate (11d, 11f) is solid and retained by wedging between the bottom material ring and the protruding lip.
13. Moule selon l'une des revendications 9 à 12 , caractérisé en ce que l'anneau (35bl) de matière de fond de la pièce creuse présente des différences d' épaisseur. 13. Mold according to one of claims 9 to 12, characterized in that the ring (35bl) of bottom material of the hollow part has differences in thickness.
14. Moule selon l'une des revendications 9 à 13, caractérisé en ce que l'anneau (35bl) de matière de fond de la pièce une
Figure imgf000017_0001
face sensiblement plane et intérieurement une face présentant un epaulement annulaire (353), de manière à être plus épais en périphérie qu'en partie centrale, et la plaque de fond (llf) , disposée dans la pièce creuse, suit sensiblement la surface définie par ladite face intérieure de l'anneau de matière de fond, de sorte que cette plaque rigide de fond présente deux faces opposées curvilignes entre le centre et la périphérie. 14. Mold according to one of claims 9 to 13, characterized in that the ring (35bl) of bottom material of the piece a
Figure imgf000017_0001
substantially flat face and internally a face having an annular shoulder (353), so as to be thicker peripherally than in central part, and the bottom plate (11f), disposed in the hollow part, substantially follows the surface defined by said inner face of the bottom material ring, so that this rigid bottom plate has two opposite curvilinear faces between the center and the periphery.
15. Moule selon l'une des revendications précédentes, caractérisé en ce qu'il comprend une couronne supérieure (4) s 'étendant vers l'extérieur de la paroi latérale (3) , transversalement à elle, sensiblement au niveau de l'ouverture (5) de ladite pièce creuse (1), et en ce qu'au moins une autre armature rigide (7) , annulaire ou sensiblement annulaire, est liée à cette couronne supérieure (4), à distance de l'ouverture (5) . 15. Mold according to one of the preceding claims, characterized in that it comprises an upper ring (4) extending outwardly of the side wall (3), transversely to it, substantially at the opening (5) of said hollow part (1), and in that at least one other rigid armature (7), annular or substantially annular, is connected to this upper ring (4), away from the opening (5) .
16. Moule selon l'une des revendications précédentes, caractérisé en ce que la pièce creuse (la) est monoblαc et en silicone. 16. Mold according to one of the preceding claims, characterized in that the hollow part (la) is monoblαc and silicone.
17. Procédé de démoulage d'une préparation culinaire hors d'un moule selon l'une des revendications précédentes, dans lequel procédé on exerce une pression sur le moule (1) tendant à rapprocher le niveau de la paroi de fond (2) et celui de l'ouverture de la pièce creuse, en courbant ainsi la paroi latérale (3), caractérisé en ce que, lors de ce démoulage, on fait passer la paroi de fond au-dessus du niveau de ladite ouverture (5) . 17. Method of demolding a food preparation out of a mold according to one of the preceding claims, wherein the method is applied to the mold (1) tending to bring the level of the bottom wall (2) and that of the opening of the hollow part, thereby bending the side wall (3), characterized in that, during this demolding, the bottom wall is passed above the level of said opening (5).
18. Procédé selon la revendication 17 caractérisé en ce que, lors du démoulage, on poursuit l'élévation de la paroi de fond au-dessus du niveau de ladite ouverture (5), jusqu'à déplier vers le haut la paroi latérale (3) . 18. The method of claim 17 characterized in that, during the demolding, is continued elevation of the bottom wall above the level of said opening (5), to unfold upwardly the side wall (3). ).
19. Procédé de démoulage d'une préparation culinaire hors d'un moule selon l'une des revendications 1 à 16, caractérisé en ce que, moule à l'envers, on agit sur l' (les) armature (s) (7, 11, lia, 11b.... ) pour rapprocher le fond (2) et l'ouverture (5) . 19. Method of demolding a food preparation out of a mold according to one of claims 1 to 16, characterized in that, molded upside down, it acts on the (the) frame (s) (7). , 11, 11a, 11b ....) to bring the bottom (2) and the opening (5) closer.
PCT/FR2004/001745 2003-07-04 2004-07-05 Stiffened flexible baking tin WO2005004610A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP04767581A EP1641344B1 (en) 2003-07-04 2004-07-05 Stiffened flexible baking tin
CA2530862A CA2530862C (en) 2003-07-04 2004-07-05 Stiffened flexible baking tin
US10/581,616 US8047500B2 (en) 2003-07-04 2004-07-05 Stiffened flexible baking tin
AT04767581T ATE494783T1 (en) 2003-07-04 2004-07-05 STIFFEN FLEXIBLE BAKING MOLD
DE602004031013T DE602004031013D1 (en) 2003-07-04 2004-07-05 Versteifte flexible backform
JP2006518283A JP2007515930A (en) 2003-07-04 2004-07-05 Mold for cooking ingredients
PL04767581T PL1641344T3 (en) 2003-07-04 2004-07-05 Stiffened flexible baking tin
DK04767581.4T DK1641344T3 (en) 2003-07-04 2004-07-05 Stiffened flexible shape

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0308221A FR2856892B1 (en) 2003-07-04 2003-07-04 RIGIDIFIED SOFT MOLD
FR03/08221 2003-07-04

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WO2005004610A2 true WO2005004610A2 (en) 2005-01-20
WO2005004610A3 WO2005004610A3 (en) 2005-05-19

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US8047500B2 (en) 2011-11-01
CA2530862C (en) 2012-02-07
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US20050000960A1 (en) 2005-01-06
ATE494783T1 (en) 2011-01-15
CA2530862A1 (en) 2005-01-20
EP1641344A2 (en) 2006-04-05
DK1641344T3 (en) 2011-05-09
RU2350081C2 (en) 2009-03-27
FR2856892B1 (en) 2006-11-17
DE602004031013D1 (en) 2011-02-24
RU2006103255A (en) 2006-07-27
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FR2856892A1 (en) 2005-01-07
WO2005004610A3 (en) 2005-05-19

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